Improvement in grates for coal stoves and furnaces



UNITED STATES PATENT OFFICE.

WVM. HAILES, OF ALBANY, NEW YORK.

IMPROVEMENT IN GRATES FOR COAL STOVES AND FURNACES.

Specification forming part of Letters Patent No` 36,950., dated November1B, 1862.

To all whom t may concern.-

Be itknoWn that I, WM. HAILEs. ofAlbauy, in the county ofAlbany andState of New York, haveinvcnted certain new and useful Improvements inStoveGrates; and I do hereby declare that the following is a full,clear, and exact description of the same, reference being had to theaccompanying drawings, and to the letters of reference marked thereon.

The nature of this invention consists in constructing a circular or thatkind of grate which is agitated from a center on a level in such amanner that the spaces or peculiar springs between the bars increase insize or area from the periphery to the center to compensate for thedecrease of motion, so that the grate will, when agitated, relieveitself from impurities, elinkers, and ashes equally all over itssurface, thereby enabling me to keep the fire running for an indefiniteperiod of time without dumping or emptying the fire-pot, the importanceof which cannot be overrated; also, in the peculiar construction andarrangement of the bar under the grate when used with the grate, as willbe set forth.

In the figures, A represents the circular grate, which has three armsuniting in its center, at the junction of which a pin or rod passes downfrom the under side, in order to secure it to the bar B, over which itoscillates or partially rotates. Upon the inner rim of this grate are aseries of long projections, b b, and short ones a a, so adjusted orarranged that the ash-space is greater near the center than it is aboutthe circumference, to compensate for the increase of motion from thecenter to the rim, thereby enabling the grate to discharge equally overits whole surface.

B represents the bar on which the grate rests. This bar has a loop, O,cast in it, through which the projection D, which is cast to the grate,plays. The projection D plays in the loop, and the size ofthe loop formsthe limit of the movement of the grate. The pin on the under side of thegrate passes through the bar B, as is seen, and is secured by means of anut, as shown in Fig. 2.

d d represent a series of projections cast upon the periphery of therim, which serve as shakers and agitators when the grate is moved, toprevent t-he accumulation of ashes and the consequent clogging of thegrate.

I do not claim any particular form ot' opening in the grate, as otherforms will answer.

I am aware thatgrates have been made with bars running to the center.Therefore I do not claim such; but

What I do claim is- The projections d d on the outer periphery of thegrate, in combination with the inner projections a b, and with thelooped bar in operating the grate, substantially as above described.

XVM. HAILES.

A /itnesses:

Trios. HOUGHTON, J. M. NoRTHRoP.

